html {
    box-sizing: border-box;
}

*,
*::before,
*::after {
    box-sizing: inherit;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
}

nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 150px;
    background-color: #53a1d1;
    color: white;
    height: 78px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 1.25rem;
}

nav a {
    text-decoration: none;
    color: white;
}

nav a:visited {
    color: white;
}

footer {
    padding: 0 15px;
    padding-top: 50px;
    padding-bottom: 15px;
    display: flex;
    gap: 50px;
    justify-content: start;
    color: #4579d0;
    font-weight: 800;
    font-size: 1.25rem;
}

footer a {
    text-decoration: underline;
}

.fa-viber {
    color: purple;
}

main {
    flex-grow: 1;
    padding: 0 50px;
    padding-top: 25px;
    text-align: center;
    display: flex;
    align-items: start;
    flex-direction: column;
    gap: 30px;
}

main h1 {
    color: #4579d0;
    font-size: 3rem;
}

main p {
    font-size: 1.15rem;
    color: #4579d0;
    max-width: 1000px;
    text-align: start;
    line-height: 2;
}

@media only screen and (max-width: 650px) {
    nav {
        gap: 50px;
        font-size: 1rem;
    }

    footer {
        flex-direction: column;
        gap: 15px;
        font-size: 1.15rem;
    }

    main h1 {
        color: #4579d0;
        font-size: 2.5rem;
    }

    main p {
        font-size: 1rem;
        color: #4579d0;
        max-width: 1000px;
        text-align: start;
        line-height: 2;
    }
}